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29<br />
Next put carriage on<br />
adjusting board , then<br />
adjust the level of the<br />
two heads<br />
<strong>After</strong> put carriage<br />
on adjusting board ,<br />
loose the left and<br />
right screw of<br />
carriage to adjust<br />
two heads level .<br />
<strong>After</strong> adjusting,<br />
try best to make<br />
sure there is no<br />
gap between two<br />
heads and<br />
adjusting head<br />
board